/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:03:12,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:03:12,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:03:12,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:03:12,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:03:12,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:03:12,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:03:12,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:03:12,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:03:12,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:03:13,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:03:13,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:03:13,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:03:13,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:03:13,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:03:13,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:03:13,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:03:13,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:03:13,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:03:13,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:03:13,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:03:13,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:03:13,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:03:13,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:03:13,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:03:13,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:03:13,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:03:13,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:03:13,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:03:13,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:03:13,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:03:13,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:03:13,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:03:13,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:03:13,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:03:13,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:03:13,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:03:13,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:03:13,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:03:13,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:03:13,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:03:13,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:03:13,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:03:13,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:03:13,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:03:13,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:03:13,093 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:03:13,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:03:13,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:03:13,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:03:13,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:03:13,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:03:13,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:03:13,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:03:13,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:03:13,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:03:13,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:03:13,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:03:13,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:03:13,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:03:13,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:03:13,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:03:13,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:03:13,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:03:13,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:03:13,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:03:13,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:03:13,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:03:13,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:03:13,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:03:13,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:03:13,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:03:13,580 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:03:13,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2020-12-22 15:03:13,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0a3f0ce8/a4d524319c85429d83c68e956495dd01/FLAGec7948b68 [2020-12-22 15:03:15,075 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:03:15,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2020-12-22 15:03:15,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0a3f0ce8/a4d524319c85429d83c68e956495dd01/FLAGec7948b68 [2020-12-22 15:03:15,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0a3f0ce8/a4d524319c85429d83c68e956495dd01 [2020-12-22 15:03:15,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:03:15,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:03:15,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:03:15,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:03:15,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:03:15,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:15" (1/1) ... [2020-12-22 15:03:15,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce2090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:15, skipping insertion in model container [2020-12-22 15:03:15,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:03:15" (1/1) ... [2020-12-22 15:03:15,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:03:15,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:03:17,956 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i[301264,301277] [2020-12-22 15:03:18,049 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2020-12-22 15:03:18,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:03:18,129 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:03:18,725 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i[301264,301277] [2020-12-22 15:03:18,731 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2020-12-22 15:03:18,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:03:19,151 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:03:19,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19 WrapperNode [2020-12-22 15:03:19,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:03:19,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:03:19,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:03:19,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:03:19,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:19,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:20,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:03:20,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:03:20,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:03:20,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:03:20,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:20,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:21,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:21,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:21,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:22,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:22,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... [2020-12-22 15:03:22,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:03:22,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:03:22,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:03:22,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:03:22,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:03:22,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:03:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:03:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:03:22,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:03:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2020-12-22 15:03:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:03:22,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:03:22,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:03:22,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:03:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:03:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:03:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:03:22,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:03:22,710 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 15:03:22,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:03:22,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:03:22,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:04:33,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:04:33,694 INFO L299 CfgBuilder]: Removed 8335 assume(true) statements. [2020-12-22 15:04:33,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:33 BoogieIcfgContainer [2020-12-22 15:04:33,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:04:33,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:04:33,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:04:33,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:04:33,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:03:15" (1/3) ... [2020-12-22 15:04:33,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f97dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:33, skipping insertion in model container [2020-12-22 15:04:33,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:03:19" (2/3) ... [2020-12-22 15:04:33,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f97dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:33, skipping insertion in model container [2020-12-22 15:04:33,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:33" (3/3) ... [2020-12-22 15:04:33,713 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--ali-ircc.ko-entry_point.cil.out.i [2020-12-22 15:04:33,720 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:04:33,729 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 15:04:33,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 15:04:33,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:04:33,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:04:33,804 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:04:33,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:04:33,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:04:33,804 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:04:33,804 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:04:33,804 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:04:33,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states. [2020-12-22 15:04:33,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 15:04:33,936 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:33,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:33,938 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:33,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:33,949 INFO L82 PathProgramCache]: Analyzing trace with hash -502711474, now seen corresponding path program 1 times [2020-12-22 15:04:33,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:33,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417690380] [2020-12-22 15:04:33,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:35,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417690380] [2020-12-22 15:04:35,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:35,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:04:35,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939056406] [2020-12-22 15:04:35,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:04:35,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:35,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:04:35,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:04:35,246 INFO L87 Difference]: Start difference. First operand 5923 states. Second operand 2 states. [2020-12-22 15:04:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:35,547 INFO L93 Difference]: Finished difference Result 11842 states and 15703 transitions. [2020-12-22 15:04:35,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:04:35,549 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 83 [2020-12-22 15:04:35,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:35,625 INFO L225 Difference]: With dead ends: 11842 [2020-12-22 15:04:35,625 INFO L226 Difference]: Without dead ends: 5887 [2020-12-22 15:04:35,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:04:35,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5887 states. [2020-12-22 15:04:35,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5887 to 5887. [2020-12-22 15:04:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5887 states. [2020-12-22 15:04:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 7770 transitions. [2020-12-22 15:04:35,971 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 7770 transitions. Word has length 83 [2020-12-22 15:04:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:35,973 INFO L481 AbstractCegarLoop]: Abstraction has 5887 states and 7770 transitions. [2020-12-22 15:04:35,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:04:35,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 7770 transitions. [2020-12-22 15:04:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 15:04:35,990 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:35,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:35,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:04:35,991 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:35,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:35,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1603257414, now seen corresponding path program 1 times [2020-12-22 15:04:35,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:35,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761670626] [2020-12-22 15:04:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:37,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761670626] [2020-12-22 15:04:37,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:37,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:37,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678883012] [2020-12-22 15:04:37,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:04:37,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:37,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:04:37,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:04:37,449 INFO L87 Difference]: Start difference. First operand 5887 states and 7770 transitions. Second operand 4 states. [2020-12-22 15:04:38,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:38,668 INFO L93 Difference]: Finished difference Result 21645 states and 28520 transitions. [2020-12-22 15:04:38,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:04:38,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-12-22 15:04:38,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:38,750 INFO L225 Difference]: With dead ends: 21645 [2020-12-22 15:04:38,751 INFO L226 Difference]: Without dead ends: 15786 [2020-12-22 15:04:38,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15786 states. [2020-12-22 15:04:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15786 to 8322. [2020-12-22 15:04:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8322 states. [2020-12-22 15:04:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8322 states to 8322 states and 10953 transitions. [2020-12-22 15:04:39,128 INFO L78 Accepts]: Start accepts. Automaton has 8322 states and 10953 transitions. Word has length 83 [2020-12-22 15:04:39,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:39,129 INFO L481 AbstractCegarLoop]: Abstraction has 8322 states and 10953 transitions. [2020-12-22 15:04:39,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:04:39,130 INFO L276 IsEmpty]: Start isEmpty. Operand 8322 states and 10953 transitions. [2020-12-22 15:04:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 15:04:39,150 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:39,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:39,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:04:39,151 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:39,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:39,153 INFO L82 PathProgramCache]: Analyzing trace with hash 14418605, now seen corresponding path program 1 times [2020-12-22 15:04:39,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:39,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849559496] [2020-12-22 15:04:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:39,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849559496] [2020-12-22 15:04:39,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:39,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:39,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829408089] [2020-12-22 15:04:39,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:04:39,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:39,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:04:39,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:04:39,940 INFO L87 Difference]: Start difference. First operand 8322 states and 10953 transitions. Second operand 4 states. [2020-12-22 15:04:41,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:41,105 INFO L93 Difference]: Finished difference Result 33824 states and 44445 transitions. [2020-12-22 15:04:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:04:41,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-12-22 15:04:41,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:41,211 INFO L225 Difference]: With dead ends: 33824 [2020-12-22 15:04:41,212 INFO L226 Difference]: Without dead ends: 25530 [2020-12-22 15:04:41,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25530 states. [2020-12-22 15:04:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25530 to 15744. [2020-12-22 15:04:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15744 states. [2020-12-22 15:04:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15744 states to 15744 states and 20711 transitions. [2020-12-22 15:04:42,123 INFO L78 Accepts]: Start accepts. Automaton has 15744 states and 20711 transitions. Word has length 84 [2020-12-22 15:04:42,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:42,123 INFO L481 AbstractCegarLoop]: Abstraction has 15744 states and 20711 transitions. [2020-12-22 15:04:42,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:04:42,124 INFO L276 IsEmpty]: Start isEmpty. Operand 15744 states and 20711 transitions. [2020-12-22 15:04:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-22 15:04:42,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:42,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:42,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:04:42,142 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:42,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:42,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1227623781, now seen corresponding path program 1 times [2020-12-22 15:04:42,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:42,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235887460] [2020-12-22 15:04:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:42,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235887460] [2020-12-22 15:04:42,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:42,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:42,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248704230] [2020-12-22 15:04:42,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:04:42,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:42,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:04:42,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:04:42,926 INFO L87 Difference]: Start difference. First operand 15744 states and 20711 transitions. Second operand 4 states. [2020-12-22 15:04:45,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:45,101 INFO L93 Difference]: Finished difference Result 65002 states and 85343 transitions. [2020-12-22 15:04:45,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:04:45,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-12-22 15:04:45,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:45,282 INFO L225 Difference]: With dead ends: 65002 [2020-12-22 15:04:45,282 INFO L226 Difference]: Without dead ends: 49286 [2020-12-22 15:04:45,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49286 states. [2020-12-22 15:04:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49286 to 29745. [2020-12-22 15:04:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29745 states. [2020-12-22 15:04:47,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29745 states to 29745 states and 39094 transitions. [2020-12-22 15:04:47,042 INFO L78 Accepts]: Start accepts. Automaton has 29745 states and 39094 transitions. Word has length 85 [2020-12-22 15:04:47,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:47,043 INFO L481 AbstractCegarLoop]: Abstraction has 29745 states and 39094 transitions. [2020-12-22 15:04:47,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:04:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 29745 states and 39094 transitions. [2020-12-22 15:04:47,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 15:04:47,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:47,069 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:47,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:04:47,070 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:47,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:47,071 INFO L82 PathProgramCache]: Analyzing trace with hash 954491686, now seen corresponding path program 1 times [2020-12-22 15:04:47,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:47,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618643652] [2020-12-22 15:04:47,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:04:47,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618643652] [2020-12-22 15:04:47,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:47,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:04:47,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223000099] [2020-12-22 15:04:47,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:04:47,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:47,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:04:47,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:04:47,845 INFO L87 Difference]: Start difference. First operand 29745 states and 39094 transitions. Second operand 4 states. [2020-12-22 15:04:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:04:50,856 INFO L93 Difference]: Finished difference Result 124825 states and 163712 transitions. [2020-12-22 15:04:50,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:04:50,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2020-12-22 15:04:50,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:04:51,252 INFO L225 Difference]: With dead ends: 124825 [2020-12-22 15:04:51,253 INFO L226 Difference]: Without dead ends: 95108 [2020-12-22 15:04:51,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:51,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95108 states. [2020-12-22 15:04:54,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95108 to 56058. [2020-12-22 15:04:54,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56058 states. [2020-12-22 15:04:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56058 states to 56058 states and 73588 transitions. [2020-12-22 15:04:54,453 INFO L78 Accepts]: Start accepts. Automaton has 56058 states and 73588 transitions. Word has length 86 [2020-12-22 15:04:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:04:54,456 INFO L481 AbstractCegarLoop]: Abstraction has 56058 states and 73588 transitions. [2020-12-22 15:04:54,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:04:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 56058 states and 73588 transitions. [2020-12-22 15:04:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 15:04:54,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:04:54,478 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:04:54,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:04:54,479 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:04:54,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:04:54,480 INFO L82 PathProgramCache]: Analyzing trace with hash 576370686, now seen corresponding path program 1 times [2020-12-22 15:04:54,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:04:54,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365411607] [2020-12-22 15:04:54,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:04:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:04:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 15:04:55,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365411607] [2020-12-22 15:04:55,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:04:55,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:04:55,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81580051] [2020-12-22 15:04:55,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:04:55,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:04:55,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:04:55,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:04:55,149 INFO L87 Difference]: Start difference. First operand 56058 states and 73588 transitions. Second operand 5 states. [2020-12-22 15:05:01,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:01,428 INFO L93 Difference]: Finished difference Result 180882 states and 237208 transitions. [2020-12-22 15:05:01,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:05:01,429 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-12-22 15:05:01,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:01,882 INFO L225 Difference]: With dead ends: 180882 [2020-12-22 15:05:01,883 INFO L226 Difference]: Without dead ends: 124852 [2020-12-22 15:05:01,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 15:05:02,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124852 states. [2020-12-22 15:05:05,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124852 to 56098. [2020-12-22 15:05:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56098 states. [2020-12-22 15:05:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56098 states to 56098 states and 73628 transitions. [2020-12-22 15:05:05,258 INFO L78 Accepts]: Start accepts. Automaton has 56098 states and 73628 transitions. Word has length 91 [2020-12-22 15:05:05,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:05,258 INFO L481 AbstractCegarLoop]: Abstraction has 56098 states and 73628 transitions. [2020-12-22 15:05:05,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:05:05,258 INFO L276 IsEmpty]: Start isEmpty. Operand 56098 states and 73628 transitions. [2020-12-22 15:05:05,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 15:05:05,273 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:05,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:05,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:05:05,274 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:05,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:05,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1176619895, now seen corresponding path program 1 times [2020-12-22 15:05:05,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:05,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983503873] [2020-12-22 15:05:05,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:05,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:05:05,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983503873] [2020-12-22 15:05:05,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:05,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:05,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219376677] [2020-12-22 15:05:05,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:05,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:05,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:05,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:05,987 INFO L87 Difference]: Start difference. First operand 56098 states and 73628 transitions. Second operand 3 states. [2020-12-22 15:05:08,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:08,435 INFO L93 Difference]: Finished difference Result 112184 states and 147257 transitions. [2020-12-22 15:05:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:08,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-22 15:05:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:08,540 INFO L225 Difference]: With dead ends: 112184 [2020-12-22 15:05:08,541 INFO L226 Difference]: Without dead ends: 56114 [2020-12-22 15:05:08,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:08,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56114 states. [2020-12-22 15:05:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56114 to 56114. [2020-12-22 15:05:10,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56114 states. [2020-12-22 15:05:10,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56114 states to 56114 states and 73644 transitions. [2020-12-22 15:05:10,818 INFO L78 Accepts]: Start accepts. Automaton has 56114 states and 73644 transitions. Word has length 106 [2020-12-22 15:05:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:10,820 INFO L481 AbstractCegarLoop]: Abstraction has 56114 states and 73644 transitions. [2020-12-22 15:05:10,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 56114 states and 73644 transitions. [2020-12-22 15:05:10,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 15:05:10,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:10,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:10,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:05:10,833 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1108600306, now seen corresponding path program 1 times [2020-12-22 15:05:10,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:10,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290704470] [2020-12-22 15:05:10,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 15:05:11,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290704470] [2020-12-22 15:05:11,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:11,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:05:11,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884073222] [2020-12-22 15:05:11,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:11,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:11,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:11,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:11,842 INFO L87 Difference]: Start difference. First operand 56114 states and 73644 transitions. Second operand 3 states. [2020-12-22 15:05:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:13,941 INFO L93 Difference]: Finished difference Result 62222 states and 82260 transitions. [2020-12-22 15:05:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:13,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-22 15:05:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:14,024 INFO L225 Difference]: With dead ends: 62222 [2020-12-22 15:05:14,024 INFO L226 Difference]: Without dead ends: 62218 [2020-12-22 15:05:14,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62218 states. [2020-12-22 15:05:15,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62218 to 56110. [2020-12-22 15:05:15,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56110 states. [2020-12-22 15:05:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56110 states to 56110 states and 73610 transitions. [2020-12-22 15:05:16,077 INFO L78 Accepts]: Start accepts. Automaton has 56110 states and 73610 transitions. Word has length 107 [2020-12-22 15:05:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:16,078 INFO L481 AbstractCegarLoop]: Abstraction has 56110 states and 73610 transitions. [2020-12-22 15:05:16,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 56110 states and 73610 transitions. [2020-12-22 15:05:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 15:05:16,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:16,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:16,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:05:16,091 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:16,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1400467914, now seen corresponding path program 1 times [2020-12-22 15:05:16,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:16,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403587574] [2020-12-22 15:05:16,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:05:16,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403587574] [2020-12-22 15:05:16,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:16,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:16,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431682404] [2020-12-22 15:05:16,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:16,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:16,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:16,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:16,552 INFO L87 Difference]: Start difference. First operand 56110 states and 73610 transitions. Second operand 3 states. [2020-12-22 15:05:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:19,860 INFO L93 Difference]: Finished difference Result 152020 states and 199619 transitions. [2020-12-22 15:05:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:19,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-12-22 15:05:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:19,994 INFO L225 Difference]: With dead ends: 152020 [2020-12-22 15:05:19,995 INFO L226 Difference]: Without dead ends: 95938 [2020-12-22 15:05:20,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95938 states. [2020-12-22 15:05:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95938 to 95298. [2020-12-22 15:05:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95298 states. [2020-12-22 15:05:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95298 states to 95298 states and 125280 transitions. [2020-12-22 15:05:23,482 INFO L78 Accepts]: Start accepts. Automaton has 95298 states and 125280 transitions. Word has length 110 [2020-12-22 15:05:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:23,482 INFO L481 AbstractCegarLoop]: Abstraction has 95298 states and 125280 transitions. [2020-12-22 15:05:23,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:23,482 INFO L276 IsEmpty]: Start isEmpty. Operand 95298 states and 125280 transitions. [2020-12-22 15:05:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 15:05:23,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:23,489 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:23,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:05:23,489 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:23,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:23,490 INFO L82 PathProgramCache]: Analyzing trace with hash 941197627, now seen corresponding path program 1 times [2020-12-22 15:05:23,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:23,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143012380] [2020-12-22 15:05:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:05:24,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143012380] [2020-12-22 15:05:24,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:24,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:24,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980312355] [2020-12-22 15:05:24,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:24,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:24,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:24,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:24,176 INFO L87 Difference]: Start difference. First operand 95298 states and 125280 transitions. Second operand 3 states. [2020-12-22 15:05:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:26,709 INFO L93 Difference]: Finished difference Result 156300 states and 205799 transitions. [2020-12-22 15:05:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:26,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-12-22 15:05:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:26,793 INFO L225 Difference]: With dead ends: 156300 [2020-12-22 15:05:26,793 INFO L226 Difference]: Without dead ends: 61030 [2020-12-22 15:05:26,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:26,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61030 states. [2020-12-22 15:05:28,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61030 to 61030. [2020-12-22 15:05:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61030 states. [2020-12-22 15:05:28,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61030 states to 61030 states and 80518 transitions. [2020-12-22 15:05:28,921 INFO L78 Accepts]: Start accepts. Automaton has 61030 states and 80518 transitions. Word has length 111 [2020-12-22 15:05:28,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:28,922 INFO L481 AbstractCegarLoop]: Abstraction has 61030 states and 80518 transitions. [2020-12-22 15:05:28,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:28,922 INFO L276 IsEmpty]: Start isEmpty. Operand 61030 states and 80518 transitions. [2020-12-22 15:05:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-22 15:05:28,924 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:28,925 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:28,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:05:28,925 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:28,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1249662915, now seen corresponding path program 1 times [2020-12-22 15:05:28,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:28,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675237258] [2020-12-22 15:05:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:29,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:05:29,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675237258] [2020-12-22 15:05:29,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:29,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:29,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297839083] [2020-12-22 15:05:29,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:29,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:29,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:29,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:29,542 INFO L87 Difference]: Start difference. First operand 61030 states and 80518 transitions. Second operand 3 states. [2020-12-22 15:05:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:33,293 INFO L93 Difference]: Finished difference Result 172926 states and 228474 transitions. [2020-12-22 15:05:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:33,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-12-22 15:05:33,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:33,486 INFO L225 Difference]: With dead ends: 172926 [2020-12-22 15:05:33,486 INFO L226 Difference]: Without dead ends: 111924 [2020-12-22 15:05:33,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:33,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111924 states. [2020-12-22 15:05:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111924 to 111876. [2020-12-22 15:05:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111876 states. [2020-12-22 15:05:37,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111876 states to 111876 states and 147915 transitions. [2020-12-22 15:05:37,280 INFO L78 Accepts]: Start accepts. Automaton has 111876 states and 147915 transitions. Word has length 113 [2020-12-22 15:05:37,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:37,280 INFO L481 AbstractCegarLoop]: Abstraction has 111876 states and 147915 transitions. [2020-12-22 15:05:37,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:37,280 INFO L276 IsEmpty]: Start isEmpty. Operand 111876 states and 147915 transitions. [2020-12-22 15:05:37,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-12-22 15:05:37,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:37,283 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:37,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:05:37,284 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:37,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:37,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1010747492, now seen corresponding path program 1 times [2020-12-22 15:05:37,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:37,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215664002] [2020-12-22 15:05:37,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:05:38,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215664002] [2020-12-22 15:05:38,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:38,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:05:38,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399875961] [2020-12-22 15:05:38,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:05:38,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:38,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:05:38,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:38,020 INFO L87 Difference]: Start difference. First operand 111876 states and 147915 transitions. Second operand 3 states. [2020-12-22 15:05:45,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:05:45,258 INFO L93 Difference]: Finished difference Result 274906 states and 363876 transitions. [2020-12-22 15:05:45,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:05:45,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-12-22 15:05:45,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:05:45,543 INFO L225 Difference]: With dead ends: 274906 [2020-12-22 15:05:45,543 INFO L226 Difference]: Without dead ends: 163058 [2020-12-22 15:05:45,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:05:45,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163058 states. [2020-12-22 15:05:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163058 to 163010. [2020-12-22 15:05:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163010 states. [2020-12-22 15:05:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163010 states to 163010 states and 215760 transitions. [2020-12-22 15:05:51,120 INFO L78 Accepts]: Start accepts. Automaton has 163010 states and 215760 transitions. Word has length 135 [2020-12-22 15:05:51,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:05:51,120 INFO L481 AbstractCegarLoop]: Abstraction has 163010 states and 215760 transitions. [2020-12-22 15:05:51,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:05:51,120 INFO L276 IsEmpty]: Start isEmpty. Operand 163010 states and 215760 transitions. [2020-12-22 15:05:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-12-22 15:05:51,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:05:51,124 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:05:51,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 15:05:51,124 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:05:51,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:05:51,125 INFO L82 PathProgramCache]: Analyzing trace with hash 146684243, now seen corresponding path program 1 times [2020-12-22 15:05:51,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:05:51,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717584955] [2020-12-22 15:05:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:05:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:05:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 15:05:51,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717584955] [2020-12-22 15:05:51,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:05:51,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 15:05:51,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800662813] [2020-12-22 15:05:51,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:05:51,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:05:51,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:05:51,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:05:51,680 INFO L87 Difference]: Start difference. First operand 163010 states and 215760 transitions. Second operand 5 states. [2020-12-22 15:06:11,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:06:11,904 INFO L93 Difference]: Finished difference Result 695898 states and 920580 transitions. [2020-12-22 15:06:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:06:11,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-12-22 15:06:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:06:13,963 INFO L225 Difference]: With dead ends: 695898 [2020-12-22 15:06:13,963 INFO L226 Difference]: Without dead ends: 532916 [2020-12-22 15:06:14,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-22 15:06:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532916 states. [2020-12-22 15:06:26,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532916 to 214144. [2020-12-22 15:06:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214144 states. [2020-12-22 15:06:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214144 states to 214144 states and 283765 transitions. [2020-12-22 15:06:27,303 INFO L78 Accepts]: Start accepts. Automaton has 214144 states and 283765 transitions. Word has length 146 [2020-12-22 15:06:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:06:27,303 INFO L481 AbstractCegarLoop]: Abstraction has 214144 states and 283765 transitions. [2020-12-22 15:06:27,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:06:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 214144 states and 283765 transitions. [2020-12-22 15:06:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-12-22 15:06:27,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:06:27,311 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:06:27,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 15:06:27,312 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:06:27,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:06:27,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1803551276, now seen corresponding path program 1 times [2020-12-22 15:06:27,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:06:27,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897980775] [2020-12-22 15:06:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:06:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:06:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 15:06:28,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897980775] [2020-12-22 15:06:28,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:06:28,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:06:28,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25145751] [2020-12-22 15:06:28,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:06:28,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:06:28,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:06:28,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:06:28,263 INFO L87 Difference]: Start difference. First operand 214144 states and 283765 transitions. Second operand 3 states.